#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int mainchfb()
{
	int i, j, m;
	scanf("%d", &m);
	for (i = 1; i < m; i++)
	{
		for (j = 1; j < m; j++)
		{
			printf("\t%d*%d=%d", i,j,i * j);
		}
		printf("\n");
	}
	printf("");
	return 0;
}